Coway Airmega 200M vs Coway Airmega 400S
Side-by-side comparison based on published product information. Check Amazon for current price and availability.
How we evaluate products
We compare published manufacturer specifications, manuals, support policies, and relevant public guidance. We do not present unpublished laboratory or in-home measurements as our own testing.
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Use the feature table below to match published specifications to your room, filtration, and noise requirements. We do not assign an overall score without retained independent test evidence.
Feature comparison
| Feature | Coway Airmega 200M | Coway Airmega 400S |
|---|---|---|
| CADR | 246 / 249 / 277 CFM (Smoke / Dust / Pollen) | 328 / 328 / 400 CFM (Smoke / Dust / Pollen) |
| Coverage | 361 sq ft (4.8 ACH); 874 sq ft (2 ACH); 1,748 sq ft (1 ACH) | 1,560 sq ft (2 ACH); 3,120 sq ft (1 ACH) |
| Noise level | 24.4-55.1 dB(A) | 22-52 dB(A) |
| Power | 82 W | 66 W |
| Filter type | Pre-filter + deodorization filter + HEPA filter + bipolar device | 2 washable pre-filters + Max2 filter set (activated carbon + HEPA) |
| Filter life | Deodorization filter 6 months; HEPA filter 12 months | Max2 filter set 1 year; pre-filters washable |
| Warranty | 1 year (parts); 3 years (motor and electronic parts) | 1 year (parts); 5 years (motor and electronic parts) |
| Dimensions | 16.8 x 18.3 x 9.6 in (W x H x D) | 14.8 x 22.8 x 14.8 in (W x H x D) |
| Weight | 12.3 lbs | 24.7 lbs |